Take a paper clip. Tie a fine black thread to it. Tie a knot to the other end of the thread and stick it to a table top. Now, bring a bar magnet above the clip. The magnet will lift the clip. Keep raising the bar magnet gradually. The clip, too, will rise till the thread becomes straight. If the magnet were hidden what would you see ? A clip that hangs in mid-air !

Match the following.

Fill in the blanks.

(a) There is magnetic …….………. between like poles.

(b) Stainless steel is a …….………. substance.

(c) There is mutual attraction between …….………. poles of magnets.

(d) There is maximum magnetic force near the …………… of a magnet.

Give reasons.

A magnetic needle is used in a mariner's compass.

Give reasons.

If a bar magnet is suspended vertically it does not hang in the north-south direction.